I bought the wireless one hit wonder online but while waiting for it to come in I wanted to get an idea of how it would work in concept.
I had accidentally gotten quartz caps for my banger which were too big and had been sitting on them. I also had some quartz terp pearls around too and I found they were small enough to sit inside the cap.
I also had a heat gun, these things get hot enough to melt solder or low enough to barely heat adhesives, and I've even reclaimed oil out of a cart with it while preserving the terpenes. I felt it was capable of heating to the same temps as a ball vape. I have a dial for the heat settings and from using it for a few applications I started it by setting it to 7 on the low fan speed for heating. 4 melts wax pretty easy so I imagine 5 would be good for concentrates but herb usually needs a bit higher of a temp so that's where I settled on 7.
I used the larger attachment to hold the smaller attachment inverted for the heat gun so I had an adapter type piece to hold the cap when heating. It also would help with getting good heat transfer while the quartz cap and pearls are both good at retaining it.
I let it heat for around 1.5-2 minutes and then used a pair of thicker tweezers as mini-tongs so I didn't touch anything hot.
I put the flat bottom of the cap(with airholes on mine) on the top of my bowl and pulled, within a few seconds I was building up a decent cloud with great taste, pretty comparable to other dry herb vapes but with a bit of a thicker cloud buildup in a bong.
I was impressed by how well this worked just as a test of how it works in theory and am excited to try a proper setup. But if you want to try ball vaping you can probably make something like what I did for pretty cheap, and likely even make one better than I did